Corner extrusion



FIG. 1 is a top perspective view of a corner extrusion showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image thereof; and,

FIG. 5 is a bottom plan view thereof.

The corner extrusion is shown with a symbolic break in its length. The appearance of any portion of the corner extrusion between the jagged break lines forms no part of the claimed design. 

CLAIM The ornamental design for a corner extrusion, as shown and described. 